The Parthian Fortresses of Nisa consist of two tells of
Old and New Nisa, indicating the site of one of the earliest and most
important cities of the Parthian Empire, a major power from the mid 3rd
century BC to the 3rd century AD. They conserve the unexcavated remains
of an ancient civilization which skilfully combined its own traditional
cultural elements with those of the Hellenistic and Roman west.
Archaeological excavations in two parts of the site have revealed richly
decorated architecture, illustrative of domestic, state and religious
functions. Situated at the crossroads of important commercial and
strategic axes, this powerful empire formed a barrier to Roman expansion
while serving as an important communication and trading centre between
east and west, north and south.